teresagrullon2477 teresagrullon2477

20-04-2019
Physics

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The main source of energy for a star as it grows in size to become a red giant is _________.

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grace2442 grace2442

20-04-2019

A main sequence star burns hydrogen to helium. Once a main sequence star exhausts all of the hydrogen, it begins to expand and burn helium causing if to become a red giant.

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